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Author Topic:   Mercury motor concern?
alanfujii posted 08-04-2003 11:21 PM ET (US)   Profile for alanfujii   Send Email to alanfujii  
I looking to buy a new 13 sport with an intended use for a tender. I'm concerned with having to buy it with the Mercury outboard. I was thinking of getting it with a Honda 40 but find from the dealer that they only get it with the Mercury. Should I have a concern? Does anyone know of a dealer that will give it to me the way I want it?
jbtaz posted 08-05-2003 07:58 AM ET (US)     Profile for jbtaz  Send Email to jbtaz     
I have the same boat (2002) with a Mercury 40hp 4 stroke EFI..It's a great package and engine..I wouldn't hesitate to buy the Mercury.
lhg posted 08-05-2003 03:41 PM ET (US)     Profile for lhg    
If Electronic Fuel Injection means anything at all, the Mercury is a better engine. The Honda has the old fashioned carburetor technology. How long has it been since 4-stroke auto engines were made with carbs?

Whaletosh posted 08-05-2003 04:54 PM ET (US)     Profile for Whaletosh    
My opinion doesn't count for much around here. Be that as it may, I concur. I have had experience with 3 Mercury four strokes; a 25 HP carberated, a 60 HP EFI, and now a 40 HP EFI. I like the EFI, the motor starts like a modern car. Just turn the key; no choking or need to advance the throttle.


Whaletosh posted 08-05-2003 04:57 PM ET (US)     Profile for Whaletosh    

For 2004 swim ladders are an option on the Sport 130 and 150. Whaler is putting in some Whaleboard plates on the transom for swim ladders to be installed.

captbone posted 08-05-2003 05:18 PM ET (US)     Profile for captbone  Send Email to captbone     
The 40 EFI Four stoke mercs are more yamaha than merc anyway.
lhg posted 08-05-2003 06:39 PM ET (US)     Profile for lhg    
Capt - You've got that one exactly backward. The 40 Merc EFI 4-stroke and 40 Yamaha powerheads are 100% Mercury, made in the good old USA. So are the 30's and the 60's. The Yamaha versions do not get the EFI technology, however.
The Yamaha 50 is built on a different block (I believe the older joint venture block) from the new Mercury 50, but also does not have EFI.
Barney posted 08-05-2003 09:28 PM ET (US)     Profile for Barney  Send Email to Barney     
lhg, A chart/spreadsheet of the Yamaha/Mercury engines showing which company had the lead etc. would be interesting. I've owned a 1998 50HP Yamaha 2 Stroke and currently own a 2003 15HP Yamaha 2 stroke, 1976 4.5HP Mercury and now a 2004 90HP Mercury 4 Stroke. What you are saying is Yamaha and Mercury have had their hand in each one. Maybe not the old Iron Seahorse, but maybe. They have been busy together. Thanks for the background. Jim
captbone posted 08-07-2003 10:27 AM ET (US)     Profile for captbone  Send Email to captbone     
I thought it was a joint venture? Where are yamahas built anyway? I love my 40 efi merc.
lhg posted 08-07-2003 02:50 PM ET (US)     Profile for lhg    
The original (first) Mercury/Yamaha 50Hp 4-strokes were the joint venture. I think the Yamaha 50 still uses this engine. But I think the new 30-60HP Mercury EFI's are all Mercury. Yamaha now uses the powerhead from the Mercury 30, 40 & 60 Mercs. Checking both manufacturers specs on these engines, you'll note the blocks are the same.

Conversely, I think the Mercury 75, 90 & 115's are basically Yamaha designs, although I have been told both companies manufacture their own.

The Mercury 225 is clearly Yamaha's 225, with some improvements in sound control by Mercury. I read that Mercury contracted to buy 4000 of these from Yamaha, directly from Yamaha of Japan, much to the dismay of the Yamaha of America people. I am wondering if Mercury will now give Yamaha a chance to buy 4000 of their new 250 HP I-6 4-strokes in exchange?

The two companies have been sharing 4-stroke technology for some time now, and I think Mercury helped Yamaha get started in the outboard business years ago.

Matthew posted 08-07-2003 07:59 PM ET (US)     Profile for Matthew  Send Email to Matthew     

With regards to the 75, 90 and 115 are you talking just 4 stokes or 2 strokes as well?


lhg posted 08-07-2003 08:52 PM ET (US)     Profile for lhg    
Everything I have been discussing is 4-stroke technology. Except for similarities in lower unit design, I believe Yamaha's and Mercury's 2 strokes are unrelated. The Yamaha 70 & 90 2 stroke seems very similar to the famous OMC 3 cylinder engine.

Incidentally, the Honda 75 & 90 lower unit is (or was) purchased from Mercury and uses Mercury props.

SuburbanBoy posted 08-08-2003 01:23 AM ET (US)     Profile for SuburbanBoy  Send Email to SuburbanBoy     
I believe that some of the Tohatsu/Nissan larger outboards also use Mercury lower units. The 70/90 hp 3-cylinder units in particular. Some of my prop hardware came in Mercury boxes. The Merc lower units get around.


Swellmonster posted 08-08-2003 06:57 AM ET (US)     Profile for Swellmonster  Send Email to Swellmonster     
Do the lil mercs crunch into gear like the larger ones?
lhg posted 08-08-2003 02:27 PM ET (US)     Profile for lhg    
Where did Alan go?
alanfujii posted 08-09-2003 12:36 AM ET (US)     Profile for alanfujii  Send Email to alanfujii     
I'm still here.
Basically what I'm hearing is that I should not be concerned about the 40HP Mercury. I am a bit confused since the dealer told me that the powerheads were made by Yamaha and Mercury made the bottom portion. If some of the info I've read here is correct it may be the otherway around. I'll will say that I still do not like the idea that I can't buy the engine of my choice.
Peter posted 08-09-2003 01:11 PM ET (US)     Profile for Peter  Send Email to Peter     
I have a 3 cylinder Yamaha 70 and except for the OMC style fuel line connector and the fact that it has 3 cylinders, it is not similar to the 3 cylinder OMC 70.
newbee posted 08-14-2003 09:23 AM ET (US)     Profile for newbee  Send Email to newbee     
why can't you just order the boat and trailer you want without a motor, then just put the motor you want on it? i'm not saying this can be done but try it, see what happens.
lhg posted 08-14-2003 12:31 PM ET (US)     Profile for lhg    
You should ask Century Boat Company (owned by Yamaha) why you MUST take a Yamaha engine on their boats. I think they should offer Mercurys to those who want them.

Regarding the Mercury 4-stroke 40Hp EFI (and also the 30,50 & 60) your dealer is mis-informed. The engine is 100% Mercury, and Yamaha also buys this powerhead (and maybe manufactures it?) for their 4-stroke 40 (as they do with their 30 & 60 also). But Mercury doesn't give them the EFI part of the package.

JD Montauk posted 08-14-2003 12:56 PM ET (US)     Profile for JD Montauk  Send Email to JD Montauk     
Well, let me get this all straight in my head if that's possible. I've got a hull that's designed by Boston Whaler but owned by Brunswick Corp., a trailer that's made by EZ loader and a 90HP Mercury four stroke that's actually made by Yamaha but owned also by Brunswick who also owns Sea Ray as well as many others etc etc etc. Does anyone really know who owns what or who designed what? The main thing that matters to me is that I don't buy junk and also don't pay too much and I think Boston Whaler, Mercury as well as EZ loader have their own reputations at stake so I feel good about my '03 170 Montauk. No matter who's name is on something, the bottom line is will they stand behind it? Is it reasonable priced? Does it look good? There's a certain amount of risk for each and every purchase we make and everyone must decide for themselve what that level is. Sony is world renounded in the quality electronics world but they carry the shortest warranties in the business, why is that?

If someone whats to buy a Honda engine, then that's their right but the manufacturer has the final say and if it's in their best interest to offer what helps them then it makes sense. Mercure engines on Whalers helps Brunswick and it's not hard to figure out why they don't want to sell someone elses engine. What's the likely hood that Ford would be willing to put a Dodge Hemi engine in their trucks with the bone crushing reliability of a GM 1 ton automatic transmission with Michelin radial tires all from the factory? I'll give you the answer, 0%.

That's my 2 cents worth. Sorry for the ramble, I'm off my soap box.

Alan, I hope you find what you want somehow.

JD Montauk (David)

jbtaz posted 08-14-2003 03:16 PM ET (US)     Profile for jbtaz  Send Email to jbtaz     
JD Montauk I couldn't of said it any better...And Alanfujii, just go buy the package. The Mercury is a good engine..and I am speaking from experience.
Barney posted 08-16-2003 05:18 PM ET (US)     Profile for Barney  Send Email to Barney     
Roger That!

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